British royal Prince Harry, U.K. Prime Minister David Cameron and actor Richard E. Grant were among those who turned out to remember Nelson Mandela at a memorial service in London on Monday. The civil rights icon died in December aged 95, and he was remembered at a service at London’s Westminster Abbey on Monday. More than 2,000 mourners turned out, including actor Grant, Prince Harry, who represented his grandmother Queen Elizabeth II at the service, and the U.K.’s current leader Cameron, as well as former Prime Ministers Sir John Major and Gordon Brown. Other attendees included Mandela’s daughter Zenani and South African activist Desmond Tutu, who spoke during the service. The memorial ended with a rendition of South Africa’s national anthem. A special stone will be laid in Mandela’s honor at Westminster Abbey.